Wired up

From
Doug Fenna, University of Teesside Middlesborough

No domestic wiring system is proof against multiple faults. The purpose of
the Institution of Electrical Engineers’ wiring regulations is to reduce the
risk to a tolerable level(This Week, 19 September, p 6).

However, the regulations require more than just the earth/neutral link and
the “stake in the ground”. If the regulations had been followed properly then
the fact that the stake was not deep enough would have been revealed by testing
on installation and every five years thereafter.

You can’t get a shock unless there are two things at different potentials.
The regulations require all exposed metalwork …